To jam and learn Glee Cast - (Glee Cast Version) Toxic chords, your primary focus should be mastering these chords sequence: Ab, G, Db, Cm, Eb, Dm and Db. Start with a comfortable 66 BPM and as you become proficient, aim for the song's BPM of 132. Configure the capo to your vocal range and chord preference, remembering the key of Ab Major.